21214025125532 has 12 divisors (see below), whose sum is σ = 37987905457656. Its totient is φ = 10360337851920.

The previous prime is 21214025125393. The next prime is 21214025125541. The reversal of 21214025125532 is 23552152041212.

It is a junction number, because it is equal to n+sod(n) for n = 21214025125492 and 21214025125501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61668677519 + ... + 61668677862.

It is an arithmetic number, because the mean of its divisors is an integer number (3165658788138).

Almost surely, 2^{21214025125532} is an apocalyptic number.

It is an amenable number.

21214025125532 is a deficient number, since it is larger than the sum of its proper divisors (16773880332124).

21214025125532 is a wasteful number, since it uses less digits than its factorization.

21214025125532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123337355428 (or 123337355426 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 21214025125532 its reverse (23552152041212), we get a palindrome (44766177166744).

The spelling of 21214025125532 in words is "twenty-one trillion, two hundred fourteen billion, twenty-five million, one hundred twenty-five thousand, five hundred thirty-two".